1 / 5

Subatomic Particles in the Atom: Electrons, Protons, Neutrons, and the Discovery of Neutrons

Learn about the three subatomic particles in an atom - electrons, protons, and neutrons. Discover how James Chadwick discovered the neutron through bombarding beryllium-9 with alpha particles. Explore the actual mass, relative mass, charge, and symbol of each subatomic particle.

basso
Download Presentation

Subatomic Particles in the Atom: Electrons, Protons, Neutrons, and the Discovery of Neutrons

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Particles in the Atom Electrons (-) charge no mass located outside the nucleus Protons (+) charge 1 amu located inside the nucleus Neutrons no charge 1 amu located inside the nucleus

  2. + Discovery of the Neutron + James Chadwick bombarded beryllium-9 with alpha particles, carbon-12 atoms were formed, and neutrons were emitted. *Walter Boethe Dorin, Demmin, Gabel, Chemistry The Study of Matter 3rd Edition, page 764

  3. Subatomic particles Actual mass (g) Relative mass Name Symbol Charge Electron e- -1 1/1840 9.11 x 10-28 Proton p+ +1 1 1.67 x 10-24 Neutron no 0 1 1.67 x 10-24

  4. QUARKS equal in a neutral atom Atomic Number equals the # of... Most of the atom’s mass. Subatomic Particles ATOM NUCLEUS ELECTRONS NEUTRONS PROTONS Negative Charge Positive Charge Neutral Charge Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

More Related